3990375 has 24 divisors (see below), whose sum is σ = 7195344. Its totient is φ = 2127600.

The previous prime is 3990373. The next prime is 3990379. The reversal of 3990375 is 5730993.

It is not a de Polignac number, because 3990375 - 2¹ = 3990373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 649 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (299806).

Almost surely, 2^3990375 is an apocalyptic number.

3990375 is a deficient number, since it is larger than the sum of its proper divisors (3204969).

3990375 is a wasteful number, since it uses less digits than its factorization.

3990375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568 (or 3555 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 3990375 is about 1997.5923007461. The cubic root of 3990375 is about 158.6126801439.

The spelling of 3990375 in words is "three million, nine hundred ninety thousand, three hundred seventy-five".